49442559 has 4 divisors (see below), whose sum is σ = 65923416. Its totient is φ = 32961704.

The previous prime is 49442539. The next prime is 49442563. The reversal of 49442559 is 95524494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49442559 - 2⁵ = 49442527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49442559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49442539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8240424 + ... + 8240429.

It is an arithmetic number, because the mean of its divisors is an integer number (16480854).

Almost surely, 2^49442559 is an apocalyptic number.

49442559 is a deficient number, since it is larger than the sum of its proper divisors (16480857).

49442559 is a wasteful number, since it uses less digits than its factorization.

49442559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16480856.

The product of its digits is 259200, while the sum is 42.

The square root of 49442559 is about 7031.5403006738. The cubic root of 49442559 is about 367.0289434120.

It can be divided in two parts, 4944 and 2559, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 49442559 in words is "forty-nine million, four hundred forty-two thousand, five hundred fifty-nine".